.clearfix:before,
.clearfix:after
{
    display: block;
    clear: both;

    content: '';
}
.hide
{
    display: none !important;
}
.bottomfix
{
    position: fixed;
    z-index: 10;
    bottom: 0;

    width: 100%;
    max-width: 750px;
}
.h_box
{
    display: -webkit-box;
    display: flex;

    width: 100%;
}
.flex_1
{
    -webkit-box-flex: 1;
            box-flex: 1;
}
.flex_pjustify
{
    justify-content: space-between;
}
.fl{
    float: left;
}
.fr{
    float: right;
}